Drawing-board.



y PATENTED DEG. 25, 1906 E. K. REIGHENBACH &;G. V. WGRTHNGTGN.

DRAWING BOARD.

APPLICATION FILED MAY a, 1905.

Figl- Fig. El.

MWI/ld VIA'A narran s'rafrns Parana* vnarines.

ERNEST K. REICHENBACH AND GUY VV. VORTHINGTON, WASHINGTON, DISTRICT OFCOLUMBIA; SAID TORTHINGTON ASSIGNOR TO SAID REICH ENBACH .l

DRAWING-BOARD..

Application filari May 8, 1905.

To fall 107mm/ t nt/ny/ crm/cern,.-

Beit known that we, ERNEST li. REICHEN- BACH and GUY V. lNoRTHrNG'roN,citizens of the United States, residing at l/Vashington, in the Districtof Columbia, have invented certain new and useful Improvements inDrawing-Boards; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in theai;Y to which it appertains to make and use thesame.

This invention relates to drafting appli ances, and more particularly todrawingboards, and has for its object to provide a drawing boardequipped with means for attaching paper thereto without puncturing orVotherwise mutilating the sheets.

Another object is to provide a board oi" this kind in which theattaching devices will be adjustable to suit diilerent conditions andwhich will be extremely simple in construction and operation.

Other objects and advantages will be apparent from the folowingdescription, and it will be understood that changes in the specificconstruction shown and described may be made within the scope of theclaims and that any suitable materials may be used without departingfrom the spirit ot' the` in vention.

in the drawingsforming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,.Figure 1 is a plan view of the present board. Fig. 2 is a sectinzialview showing one form of fastener in detail. Fig. 3 is a sectional viewshowing another form of tastener. Fig. l is a plan view with one form oftop plate. Fig. 5 is a plan View of a diiterent form of top plate. Fig.6 is a detail sectional view oi one of thc plates having the elorg tedopenings.

Referring now to the drawings, the present invention is incorporated ina board 5, havin'g vertical passages 6` formed therethrough and arrangedin pairs adjacent to its ends, each pair of the assages aliningtransversely of the board. he passages 6 communicate with recesses 7,formed in the under surface of the board, and embedded in the u persurface of the board above the assages t 1ere are plates 8, havingopenings Qt erein located approximately at the centers ofthe passages.

Eins 10 are engaged in the openlngsQfgrri vertical movement, and theseDins have Hat 1 the nuts trom the pm.

Specification of Letters Patent.

Pttented Dec. 25, 1906.

Serial No. 259,405.

heads 11 at their upper ends and have their lower portions threaded, asshown at 121. lielical springs 13 are engaged with the pins, resting attheir upper en s acainst the upper surfaces of the plates 8 an at theirlower ends against thumb-nuts 14, enga ed with the threaded portions ofthe pins. rhe pins, with their heads, are thus held yieldably againstupward movement, and it will be understood that the thumb-nuts 14 may beoperated to vary the tension ofthe springs.

The openings 9 of the plates 8 at one end of the board are elongatedlongitudinally of the board for movement of the pins which are engagedtherein toward and away from the pins at the other end of the board,these -latter being arranged for vertical movement only. It will thus beapparent that the heads 11 may be raised by pressing upwardly upon thethumb-nut 11 and that a sheet of paper may be inserted beneath the headsand will be held thereby upon the board when ressure is removed from thethumb-nuts. yreaw son oi the fact that the pins at one end of the boardare movable toward and away from those of the other end sheets of paperof varying length maybe engaged by the heads, and by reason of the factthat two of the pins are immovable other than vertically one end of asheet of paper may be placed thereagainst to correctly position thepaper upon the board, the pins lying in a line extending at right anglesto the working edffe of the boar The longitudinallymovable pins thuspermit of the adjustment or one oar to suit slight variation in thelength of the pa er used.

n Fig. 3 there is shown a form of the inven tion in which the openings Jare rectangular, and in this form of the invention a rec-v tangular pin15 is used, the head being thus held against rotation, and the headcarries a downwardly-extending point. 16, which is adapted to enter anopening 17 in the plate 8, the object being to hold the paper positivelyagainst slipping by permitting the point to pass therethrough, though,as will be seen from Figs. 1 and 2, this point may` be omitted.

The Jfasteners' may be adjusted by removing the nuts 14 to permit of theinsertion of apers of different thicknesses beneath the Eead, and themovable portions o1 the fasteners/Iiny ne entirely removed bydiscngaging f IIC :ably in engagement with the board. und

l. The eoinbinzitigni with :L drawing-board, i

ol' paper-engaging devices connected thereto in spzieed relutioi,certain of sind devices beingr arranged for movement toward :rnd`

ztwziy Jfrom certain other devices in the planei o' the board tocompensate l'or variations in f the size oi' the paper, siid devicesbeingpiovided with means which enable them to be moved into und out ofoperative position and which are capable of securing them in operntiveposition.

V2. The combination with u drawing-board,

of dpaper-enga'ging devices carried therebyl an movable into und out ofoperative position, Ineens .for holding said devices lvieldably inoperativel osition; certain of said'devices being mova le toward andsway from other devices in the plaine of the board, und

means for holding theideviees at times posii tively in operativeposition.

The combination with u drawing-board having recesses 1n opposite endportions thereof, plungers mounted in the recesses, 25.

each of. said plungers having s clampinghead and having sufficientmovement to per- E mit of engagement of a sheet of paper between itsrhead and the board, a spring for each. plunger srrsnged to hold itshead yieldmeans for varying` the tension oll thespring7 the plung'eis atezieh end ol the boziid beiner movable toward and zrwziy from thepliingrei's of the opposite end whereby piiper irl' viiiioiis sizes maybe engaged with the. board.

4. The. combination with s drawing-board having recesses in opposite endportions` thereof, of plates provided with openings :ind enga-ged in therecesses, plungers mounted iii the openings of the plates and movablelongitudinally and also horizontally with rev speet to the length of theboiiid, ezieh of snid plungers having :L clamping-head und havingrlongitudinal movement sulle-ient to permit of engagement of :L sheet ofpai-per between its head and the plate, u spring' for zich plungerarranged to hold vit yieldably againstmoveineiit with itsheiid away fromthe plate. and a thumb-screw engaged with euch pliniger und adapted foroperation to vary the tension of its spring.

In testimony whereof we alix our signatures in preseneeof two witnesses`ERNEST K. REICIIICNBACII. GUY V. -"OltllllNU'lOX 'itiie'sses CiiAiiLesE. Msisii, .Xli'iiirk BiiinGE'iT.

